51368111 has 2 divisors, whose sum is σ = 51368112. Its totient is φ = 51368110.

The previous prime is 51368087. The next prime is 51368137. The reversal of 51368111 is 11186315.

It is an a-pointer prime, because the next prime (51368137) can be obtained adding 51368111 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 51368111 - 2⁶ = 51368047 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (51368011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25684055 + 25684056.

It is an arithmetic number, because the mean of its divisors is an integer number (25684056).

Almost surely, 2^51368111 is an apocalyptic number.

51368111 is a deficient number, since it is larger than the sum of its proper divisors (1).

51368111 is an equidigital number, since it uses as much as digits as its factorization.

51368111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 720, while the sum is 26.

The square root of 51368111 is about 7167.1550143694. The cubic root of 51368111 is about 371.7330700617.

The spelling of 51368111 in words is "fifty-one million, three hundred sixty-eight thousand, one hundred eleven".